Question

How did Arrhenius describe acids?

Answer 1

Substances that produce hydrogen ions in aqueous solution

Explanation:

Arrhenius defines acid as substance that produces hydrogen ions `(H^+)` in aqueous solution.

Here's the general equation defining Arrhenius acid and base:

Notice the acid, HA, will ionize in water to produce hydrogen ion `(H^+)` and a cation, `(A^-)`. The strength of the acid depends on the degree of ionization. Strong acid will ionize completely while weak acid will ionize partially,

Common examples of Arrhenius acids are:

• nitric acid, `HNO_3`
• hydrochloric acid, `HCl`
• sulfuric acid, `H_2SO_4`
• acetic acid, `HCH_3CO_2`